202012321223 has 16 divisors (see below), whose sum is σ = 223219307520. Its totient is φ = 181843111296.

The previous prime is 202012321213. The next prime is 202012321253. The reversal of 202012321223 is 322123210202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202012321223 - 2⁸ = 202012320967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202012321195 and 202012321204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202012321213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4560086 + ... + 4604172.

It is an arithmetic number, because the mean of its divisors is an integer number (13951206720).

Almost surely, 2^202012321223 is an apocalyptic number.

202012321223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

202012321223 is a deficient number, since it is larger than the sum of its proper divisors (21206986297).

202012321223 is a wasteful number, since it uses less digits than its factorization.

202012321223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55846.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 202012321223 its reverse (322123210202), we get a palindrome (524135531425).

The spelling of 202012321223 in words is "two hundred two billion, twelve million, three hundred twenty-one thousand, two hundred twenty-three".